x

What is half-life?

The half-life of a radioactive isotope is the time taken for its count-rate or activity to fall to half its starting value. It is written as $T_{1/2}$ .

4.3.2 Different half-lives of radioactive isotopes Lesson

GCSE
Physics
4.3.2 Different half-lives of radioactive isotopes

Step-by-step lessons covering AQA GCSE Physics 4.3.2 Different half-lives of radioactive isotopes for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.

Lessons

x

What is half-life?

The half-life of a radioactive isotope is the time taken for its count-rate or activity to fall to half its starting value. It is written as $T_{1/2}$ .

4.3.2 Different half-lives of radioactive isotopes Lesson

GCSE
Physics
4.3.2 Different half-lives of radioactive isotopes

Step-by-step lessons covering AQA GCSE Physics 4.3.2 Different half-lives of radioactive isotopes for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.